still sorting out the fans.
seems as though the 120's might be hit and miss. i ordered 6 and have pulled 5 out and hooked them up. two have a hum to them which kicks the 16db out the door. those will be headed back to be replaced. the others are as expected - very quiet.
would i buy these again. after running the mh's all night, i checked this morning and the only heat to be felt under the canopy is directly under the mh light itself. that's w/2 fans blowing in. huge difference from a few days back where the mh was on for a few hours and it was not only hot, the inside of the canopy (wood) itself was warm to the touch.
only problem, wish the were from a local store so i could walk in and exchange.
one other note: the hum comes from when the fans are running full blast. i have them hooked up to a variable speed controller. turn them down a little and the hum goes away.